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https://issues.apache.org/jira/browse/FELIX-2875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13536832#comment-13536832
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Tuomas Kiviaho commented on FELIX-2875:
---------------------------------------
setService(String filter) seems to be setting the missing service class as
Object and by default having on both auto config and required causes the
following
ERROR: Could not create null object for class java.lang.Object.
(java.lang.IllegalArgumentException: java.lang.Object is not an interface)
java.lang.IllegalArgumentException: java.lang.Object is not an interface
at java.lang.reflect.Proxy.getProxyClass(Proxy.java:382)
at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:601)
at
org.apache.felix.dm.impl.dependencies.ServiceDependencyImpl.getNullObject(ServiceDependencyImpl.java:355)
at
org.apache.felix.dm.impl.dependencies.ServiceDependencyImpl.lookupService(ServiceDependencyImpl.java:303)
at
org.apache.felix.dm.impl.dependencies.ServiceDependencyImpl.getAutoConfigInstance(ServiceDependencyImpl.java:842)
at
org.apache.felix.dm.impl.ComponentImpl.configureServices(ComponentImpl.java:987)
I've also managed to use it several times to provide the service interface as
class name due to old habits so I just wanted to raise a question whether or
not this particular syntactic sugar could be deprecated.
> Improve the setService() methods in the ServiceDependencyImpl to allow null
> for the service name.
> -------------------------------------------------------------------------------------------------
>
> Key: FELIX-2875
> URL: https://issues.apache.org/jira/browse/FELIX-2875
> Project: Felix
> Issue Type: Improvement
> Components: Dependency Manager
> Reporter: Marcel Offermans
> Assignee: Marcel Offermans
>
> The setService() methods are currently a bit more strict than necessary, not
> allowing you to, for example, specify only a filter condition via the method
> called setService(Class name, String filter). This in turn limits the options
> you have when creating adapters. Fix this problem and factor out any
> redundant code in these methods.
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